Digital Alarm Clock | Temperature & Time Setting Features Using DS3232 скачать в хорошем качестве

Digital Alarm Clock | Temperature & Time Setting Features Using DS3232

------------------------- 📌Introduction ------------------------- In the post Arduino alarm clock with time setting you will learn to make digital clock using RTC DS3231 module with alarm and temperature indication facility. Previously, we had already posted various types of clock circuit using arduino and RTC DS3231 . ------------------------- 📌Features ------------------------- 1. Display date and time (day and second indication). 2. Alarm time setting 3. Display temperature without using dedicated temperature sensor. 4. Can adjust time according to your requirement 5. Dedicated four push buttons for time and alarm time setting. ------------------------- 📌 Circuit Description ------------------------- The circuit, built around arduino uno board, rtc module, 16×2 LCD and few other electronic components. LCD is connected in higher order mode i.e. higher order digital pin of LCD (D4 – D7) is used to receiver the data to display. LCD Pin D4, D5, D6 and D7 is connected to arduino digital pin D7, D8, D9 and D10 respectively as shown in circuit diagram. Reset/Set (RS) pin of LCD is connected to arduino digital pin D12 where enable pin (E) of LCD is connected to D11 of arduino. Vss, RW, and LED- pin (i.e. LCD pin 1, 5 and 16) is connected to ground potential where VDD pin (Pin 2) of LCD is connected to +5V supply from arduino. VEE pin (pin 3) of LCD must be connected to lower potential then VDD and higher potential then ground. Thus, we are using a variable resistor VR1 of 10K, on fixed terminal of variable resistor VR1 is connected to +5V where other fixed terminal is connected to ground. The wiper or variable pin of variable resistor is connected to pin 3 of LCD. The voltage at this pin (pin 3) is responsible for LCD contrast. If the LCD does not show any characteristic adjust the variable resistor. LED+ pin (pin 15) of LCD is also connected to +5V through a current limiting resistor R1 (470-ohm). LED+ and LED- pin is for backlight of LCD. If you have any difficulties on interfacing LCD with arduino then please do watch the making video of “Tutorial on Interfacing of 16×2 LCD to Arduino”. RTC module DS3231 uses I2C protocol for communication, thus we are using SDA and SCL pin (A4 and A5) of arduino. There are various regions of using DSD3231 over DS, few of this reason are listed below. 1. No external crystal thus higher accuracy. 2. Inbuilt temperature sensor 3. External temperature does not affect much. For this prototype we are using DS3231 Pi model. + pin and – pin of DS3231 is connected to +5 volt and ground respectively. Where D and C pin is connected to SDA and SCL pin (Pin A4 and A5) respectively as shown in circuit diagram. Four Push-to-on switch is used to adjust time and alarm connected to arduino digital pin D2 to D5 as shown in circuit diagram. Instead of using external pullup or pulldown resistor we are using internal pullup resistor as defined in software code. ------------------------- 📌 Tags ------------------------- #clock #alarm #arduino ------------------------- 📌 The Code ------------------------- Given In Comment Section 📌 Tune With us so you never miss any update ------------------------------------------------------------------------------------------------------------------------------------------------------------- 🏷️Telegram : https://t.me/electronicsdeveloper 🏷️Facebook :   / electronicsdeveloper   🏷️Instagram :   / electronics_developer   🏷️Tweeter : https://twitter.com/Electronics_Dev?s=09 🏷️LinkedIn :   / electronics-with-shreyash   🏷️Pinterest :   / electronics_developer   Copyright Disclaimer under Section 107 of the copyright act 1976 -------------------------------------------------------------------------------------------------------------------------------------------------------------- Copyright Disclaimer under Section 107 of the copyright act 1976, allowance is made for fair use for purposes such as criticism, comment, news reporting, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favour of fair use. --------------------------------------------------------------------------------------------------------------------------------------------------------------- About Electronics Developer : YouTube certified creative essentials and asset monetization --------------------------------------------------------------------------------------------------------------------------------------------------------------- Music in this video 1] Artist :Elektronomia, JJD Licensed to YouTube by : AEI (on behalf of NCS); Featherstone Music (publishing), and 1 Music Rights Societies 2] Artist : Zaza Licensed to YouTube by : AEI (on behalf of NCS); LatinAutorPerf